Bump Apart~!!

Kassaz commissioned this silly little comic and wrote this silly little story to go along with it, now collected into an anthology:
https://www.fimfiction.net/story/564117/9/sexier-short-stories-with-particularly-pregnant-ponies/bump-apart

Ponyville’s town hall stood quietly in the blowing wind. The serenity was broken with the breaking of its wall: A chunk flew outwards, with a large rear right behind. The chunk of wall fell to the lower level, while the mare followed her hindquarters outside; more wall fell as her large belly, hanging low beneath her like a wrecking ball, knocked a bit more out of the now large hole. “Whoops!” Derpy Hooves shouted to nopony in particular while her wings flapped and struggled to keep her in the air. She managed to stop moving, sans the violent swinging motion of her gut, which soon started pulling her in one direction and then its opposite. She hit her head on the outside ceiling, and held out her forehooves to catch herself against the wall, further along the curve of the building. She succeeded in stopping herself, and in making another hole: more of the wall collapsed, inwards this time. She held her hoof to her face showing nothing but apology, again to nopony in particular. “I sure hope nopony notices that.”

There was something she was supposed to be doing at town hall, so she flew in a circle around the building while she tried to recall just what it was. She giggled at the foal movement she felt, but stopped when a kick distracted her enough to lose her distance from the building; she lost her balance and stopped herself right before she hit the wall but, like a wrecking ball, her belly kept moving and slammed into the wall anyway. She looked around nervously after spying through the new hole she’d made. Derpy seemed to remember that she’d destroyed the town hall once before—nopony had yelled at her too much, but the glares were another matter—and flew a bit further away from the wall as she kept circling the building this time. So obsessed with avoiding the walls, she didn’t notice the support beam until it was right in front of her face; she swung herself out of the way at the last moment, and her wrecking ball of a belly swung her back a moment later. A crack formed, grew, and she watched the support beam fall over, taking a section of the roof down with it. Derpy looked around nervously at nopony in particular—there was still nopony around—and wondered if she could fix it before anypony would notice.

Before she slammed her body into the building a fourth time, she decided to slow her flapping wings to lower herself. Her precious cargo touched the ground first, and she tilted backwards to land her butt on the ground behind, but gently so she wouldn’t make a hole in the floor too. Her wings folded at her back, and only now could she notice their throbbing. Stuck for a while, she tried to get comfortable with her movement restricted by the maternal mass keeping her grounded; her hindlegs splayed around her belly because they couldn’t elsewhere, and her forehooves similarly rested on top her bump due to her lack of space. Now rather than swinging her flight in one direction or another, the kicking from her foals merely reminded her of their presence, and soon not even that as it faded into the background of her mind. Derpy was thirsty, and couldn’t see why she hadn’t noticed earlier. At the same time, she felt the urge to pee with all of the pressure put on her rear from the inside. She huffed. “Let me catch my breath, and I’ll get us something to drink, alright?” Derpy affectionately rubbed her belly, only to feel a bruise, and then something occurred to her. “Wait, have I hurt you, my little foals? Is that why you’re kicking up a storm in there?” She brought her hooves to her mouth before crying out, to nopony in particular, “A-Am I a bad mommy?”

-

The moon was out, not the sun, when Derpy opened her eyes. She was in bed, and could only see by the moonlight pouring into her home through the skylight. With no weather clouds above, Derpy preferred the open roof; it made it easier for her to get inside, too. She lifted her head from the pillow and looked around the room, quiet. Derpy slowly exhaled as she realized she’d only had a bad dream, and her foals were fine; she grunted when that familiar sensation hit her in the gut—all of the kicking may have really happened, and she really was thirsty too.

Derpy scooted herself to the edge of her bed, and slowly rolled off onto all four hooves at once. Once she was far enough away from the bed that her flapping wouldn’t wake her husband, she slowly raised those four hooves from the ground and started to fly around. The first thing she did was misjudge the distance to the door, and she realized this after she slammed her muzzle into it and her head through it; the door comprised cloud which was not effortlessly pushed away, but it gave like anything else under enough force. Derpy stuck out her tongue to concentrate as she felt around for the doorknob with her forehoof; she twisted it, and nearly slammed the door into the wall as it swung open from her flying. She stuck her forehooves on both sides of her head, her hindlegs tried in vain to gain hoofing on the door too, and she freed herself with a pop. With her head free, and the momentum she’d built up, her rear slammed into another wall, which gave away much like the wall of town hall in her dream, and she landed on her butt in one of the guest bedrooms. As she’d done many times beforehoof, Derpy watched the wall with awe and wonder while it magically patched itself over the moments; the displaced cloud filled the hole, and that was that.

Flying was a bad idea, Derpy decided as she left the guest room and approached the staircase, and walking would be easier. She waddled down the first few steps well enough and then fell down the next half, leaving her belly lodged in the bottom, exposed to the gentle breeze outside. Derpy nearly gave up and fell back to sleep right there—her husband had woken up with her stuck in the staircase like this too many times for her to count—but thirst lifted sleep away from her. She left a trail of disrupted belongings in her living room after freeing herself from the staircase and flying the rest of her way to the kitchen; paintings and framed photographs were left askew or fallen, lampshades were knocked to the ground, and much of the furniture had been dragged along the floor. Eventually she found her way to the kitchen, got a glass from one of the cabinets, and dropped it to the world below right through the floor also made of clouds. She no longer bought glasses enchanted to land on clouds, since she had a habit of breaking them in other ways. It probably wouldn’t fall on a pony’s head—Derpy knew ponies didn’t like to be underneath her house for some reason. The next glass was held more firmly, and Derpy finally enjoyed her glass of water, followed by many more.

She thought about the events of the past minutes while she drank her water. There was a good reason she’d been put on maternity leave, but she just couldn’t remember why.